A rare postcard written by a Titanic crewmember is hitting the auction block next week.
The ship's radio operator, Jack Phillips, wrote a card to his sister just weeks before the Titanic's fatal journey.
An auction house says Phillips is a forgotten hero of the Titanic because he kept sending SOS messages to other ships while the Titanic was sinking.
Phillips managed to get into a lifeboat but he still died from exposure to the cold.
The auction house says his postcard is expected to fetch about $15,000.
